Beryllium, Magnesium, Calcium, Strontium, Barium, Radium
2 elements
Elements from the group 2 of the periodic table form cations.
On the left of the periodic table, especially group 1 and group 2 elements.
Group 4 elements on the periodic table contain no period 2 elements whatsoever.
Periodic table consists of elements not cations. However group 1 and group 2 elements (left side of the periodic table) are elements which will form cations easily.
A group in the periodic table is a column of elements that share similar chemical properties due to having the same number of electrons in their outer energy level. Groups are vertical columns and are numbered from 1 to 18.
The periodic table lists the elements and not compounds. Butane, C4H10, is an organic molecule / compound and hence is not present on the periodic table. The elements that make up butane (carbon and hydrogen) are present on the periodic table. Carbon: group 14, period 2 Hydrogen: group 1, period 1 Besides, group 2 elements are alkaline earth metals.
Group 1 elements are more reactive than that of group 2 elements.
Elements in group no.(verticle) 1&2
Alkali Earth metals.
Nitrogen can be found in the 1st period of group 15 elements in the periodic table.
Group 1 elements followed by group 2 elements.